* {box-sizing: border-box;}

ul {
    list-style-type: none;
}

.month {
    padding: 70px 25px;
    width: 100%;
    background: aqua;
}

.month ul{
    margin: 0;
    padding: 0;
}

.month ul li {
    color: azure;
    font-size: 20px;
    text-transform: uppercase;
    letter-spacing: 3px;
}

.month .prev {
    float: left;
    padding-top: 10px;
}

.month .next {
    float: left;
    padding-top: 10px;
}

.weekdays {
    margin: 0;
    padding: 10px 0;
    background-color: #ddd;
}

.weekdays li {
    display: inline-block;
    width: 13.6px;
    color: coral;
    text-align: center;
}


.day {
    padding: 10px 0;
    background: #eee;
    margin: 0;
}

.day li {
    list-style-type: none;
    display: inline-block;
    width: 13.6%;
    text-align: center;
    margin-bottom: 5px;
    font-size: 12px;
    color: #777;
}

/*添加不同的屏幕样式*/

@media screen and (max-width: 720px){
    .weekdays li, .days li {width: 13.1%}
}

@media screen and (max-width: 420px){
    .weekdays li, .days li {width: 12.5%}
    .days li .active {padding: 2px}
}


@media screen and (max-width: 290px){
    .weekdays li, .days li {width: 12.2%}
}
